F762 urban change case studies
- Created by: charlie
- Created on: 20-02-14 11:53
IPSWICH/SUNDERLAND - factors controlling land-use
ENVIRONEMENTAL FACTORS
- TOPOGRAPHY of land - low lying ground (low status + idustry) above sea level (high status)
- RIVERS - industry (neptune key), terraced housing, ship building (wharfs), stoke bridge
- FLOOD PLAIN - stoke park housing developments,
- COASTLINES - high status, docking, tourism (SUNDERLAND)
- NATURAL/BUILT protection - christchurch park, fossilised land uses (cementeries)
POLITICAL FACTORS
- SOCIAL HOUSING - cheap rated accomodation (chantry
- COUNCIL STRUCTURE PLANS - map of vision of next 10 years
- ECONOMIC INVESTMENT - neptune marina + uni renovated (brownfield sites)
- TRAFFIC MANAGEMENT - crown court moved out of centre
ECONOMIC FACTORS
- BID RENT-commercial areas in centre (tavern st.)+housing developers pushed out (cheaper)
- DEINDUSTRIALISATION - flour mills at neptune marinas
- AGGLOMERATION - activities attract eachother (marina flat land + water)
SUNDERLAND land use
ENVIRONMENTAL
- RIVER WEAR - flat land all expansion - CBD on south bank - lowest bridging point
- COAST - industry docks (agglomeration) + north sea limits expnasion
- SLOPES - expansion N + S on flat land (plateau)
- PROTECTED AREAS - nature (tunstall hills) + cementeries
ECONOMIC
- LAND PRICES - change with density (cheaper in low density - Millfield)
- TRANSPORT- arterial/ribbon from south west direction
- 19TH CENTURY + - people commute using cars
POLITICAL
- GREEN BELT - north of sunderland
- SOCIAL HOUSING - Pennywell
- DEINDUSTRIALISATION - ship building moved to POLAND - caused regeneration
managing urban change - water pollution
RIVER YANGTZE, CHINA
CAUSES
- large scale industrial + urban devlopment - Chongqing pop. 20M
- inland shipping discharge + fuel/waste - freight carried to urban areas
- industrial chemical discharge
- urban rubbish discharge
EFFECTS
- reuction in water drinking quality
- EUTROPHICATION - chemicals --> algae bloom --> les O2 --> fish die
MAPOCHO RIVER - SANTIAGO, CHILE
CAUSES - open sewer - chemicals (lead, copper, chrome) neurological damage/ cancer
EFFECTS - 15% sewage effluent treated, 2009 $300M clean up - send sewage to treament
managing urban change - solid waste disposal
LONDON
- industry - 6.4 M tonnes
- construction - 6.1 M tonnes
- household - 4.4 M tonnes
- hazardous 0.4 M tonnes
ISSUES
- pop. growth of 800,000 between 2005 - 2016
- 76% of municipal household waste exported destinations up to 120km in SE England
- 4/18 located in london
- outside centre exportion = INC. ECOLOGICAL FOOTPRINT
FUTURE TARGETS
- needs to acheive 6x current levels of recycling
- reduce amount of non biodegradable MHW to 75% of 1995 levels
- could face fines of up to hundreds of millions
EAST LEEDS - urban decay in MEDC
HAREHILLS INNER CITY - 1km east of CBD + 429th most deprived ward in england
- 2006 - 2/5 household on benefits / 8% unemployed / 45% adults without qualifications
- low income = attract high % of ethnic minority groups
- diet poor + abscence of fresh food + high density (120 - 130 persons/hectare)
SEACROFT OUTSKIRTS - 9000 pop., built after ww2 house those displaced from inner city
- 5% of most deprived wards in England
- criminal damage / drugs + gang culture / teenage pregnancies (child poverty)
REDEVELOPMENT SCHEMES - EAST LEEDS
- £1Bn E + SE leeds regenration project
- £15M neighbourhood renewal fund - poorest SOA's
- HAREHILLS - demolish worst housing / st James' child hospital / more primary schools
- SEACROFT -
- seacroft centre - opened 1964 then demolished- TESCO main tennant provided services + employed 320 in 1km area + intro. free 'hail + ride' scheme for acess to seacroft centre
KIBERIA - urban growth/decay in LEDC
KIBERIA SLUM, NAIROBI, KENYA (1,000,00 pop.)
URBAN GROWTH
- 6% of Narobi land but 60% of cities pop.
- due to rural - urban migration + natural pop. growth (push/pull factors)
- KENYA - 1982 - 2002 (6.3% growth/year)
HOUSING - avg. 12ft x 12ft
- 43% have natural earth floors + 1% built from brick (mostly timber, polythene, iron, mud)
ECONOMIC DEPRIVATION
- 44% regular income with 50% unemployed
- 70% in wage employment - informal work
- 25% self employed
- 50% houses on >$10.5 a day
- popular businesses are self run services
CURITIBA - sustainable urban living
- city with pop. 2 million / 1000 km from Rio de Janeiro
- was agricultural + avoided urbanisation problems
SOLUTIONS
- RECYCLING + GARBAGE - separate rubbish to organic/inorganic + recycles 2/3 of waste
- PARKS - flooding problem - water diverted to lake (wet season) + brownfield sites only used for development
TRANSPORT SYSTEM
- different routes with dedicated bus lanes + one fare (quicker)
- performs as well as underground system costing 500x more
- carry 4000 passengers a day + only 10% of earning on transport
URBAN PLANNING - built mall in 72 hours to avoid planning objections (streets safer + no traffic)
GREEN EXCHANGE - green belt overproducing so shanty towns (garbage trucks coulnt reach) given incentive to bring rubbish down (food / bus tickets in return)
LONDON - transport management
CONJESTION CHARGES
- vehicles photographed + £10
- no charge on weekends, public holidays, between 18:00 + 07:00
BARCLAYS BIKE
- different charges for amount of time rented
LOW EMISSIONS ZONES
- 2008 - encouraged heavy diesel vehicles to become cleaner
RED ROUTES
- 5% of roads carry 30% of traffic (cant stop)
- £130 penalty if bus lane or parking + loading contravention
SANTIAGO, CHILE - atmospheric pollution
- second largest city for suspended particles (210 ppm)
- second largest SO2 levels (38ppm)
PHYSICAL REASONS
- cold air displaces warm air - temperature inversion traps pollutants
- high pressure means winds cant disperse pollutants
HUMAN REASONS
- motor vehicles + industries (smelters + power plants) emit NOx, CO2, CO, O3
- motor vehicles emit 3/4 of NOx + 1/2 of all organic compounds
- INC TRAFFIC = INC. CAR OWNERSHIP
- 320 per 1000 households (1997) ----> 560 per 1000 households (2001)
- heavily rely on 11,000 diesel buses
LONDON- managing pollution
CLEAN AIR ACT - 1956
- great smog of 1952 - respiratory diseases killed 12,000 people
- relocation of heavy polluting industry + controlled types of fuel (gas not coal)
TODAY
- KENSIGTON - smoke controlled area
- smokeless coal + monitored by enviro. health officers
TRAFFIC
- conjestion charges / low emissions zone / barclays bike / red routes
VEHICLE MANAGEMENT
- catalytic converters / hybrids vehicles
INDUSTRIAL MANAGEMENT
- flue gas desulfurisation - limestone slurry where SO2 passed through removed (90% less)
LONDON - fall of the docklands
1960 (60,000 workers)-->1980 (0 workders) due to wider trends in world maritime sector :
TECHNOLOGICAL CHANGE
- containerisation + role-on role-off transfers (cut costs 2/3) - still used workers to unload
- large cargo ships (50,000 tonnes+) - couldnt cater for this size + roads for modern lorries
COMPETITION
- continental ports for world trade - Rotterdam
- UK ports for European trade- Harwich , Felixstowe
failed to RESPOND to challenges due to:
INEFFECTIVE MANAGEMENT
- no 1 organisation responsible for running port - chaotic, competive + over divided
POOR LABOUR RELATIONS
- casual working - casual earnings on arrival of ships + many strikes (resistance to change)
DONGTAN - sustainable cities (ECOPOLIS)
SITE : - Chongming island / 2010 (50,000 pop.) --> 2020 (80,000 pop.) / development space - 45 km north of Shanghai PLANNING : - british engineering group / shanghai industrial / chinese gov. HOUSING : - affordable / under 8 storeys / sustainable materials / low rise buildings (turf on roof) POWER GENERATION : - solar powered water taxis / solar powered buildings / local food sourcing / wind turbines TRANSPORT : - towns connect by cycle + public transport routes / 7min walk maximum to bus stom WASTE : - sewage processed for irrigation + composting / no landfills / clean fuel vehicles ECOLOGICAL FOOTPRINT : - keep footprint to 2.2 ha per person / grey water / reduce communters (self sufficient) WHY NEEDED : - China 20/30 most polluted cities in the world / urbanisation / reduce other city pressures - Shanghai pop. 17M rise to 23M in 2020
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